Hygroh'jciiiieu. i uanz stepiiam. species hepaticarum ( Vol. V, 1914). 



raiiiis paucis longioribus, siniiliUT pinnatis. Folia caulina iinbricala, 

 recte patula, valde concava apiceque decurva, in plano late ovata 

 (1,5 mm. longa, 1,33 mra. lata) subsymmetnca, apice obtusa, ad 

 raediuni accreta, basi anticatruncato-rotundata. Cellulx ubique aequales, 

 27X27 UL, parietibus validis. Lobulm magnus, folio triplo brevior, in 

 situ oblongus, in plano ovatus, carina oblique adscendens, leviler 

 arcuata, amplo sinu in folium excurrens, apice quam basis plus duplo 

 breviore, recte truncato, angulo acuto. Amphigastria caulina maxima, 

 oaule quintuplo vel raagis latiora, subrotunda, sinuatim inserta opti- 

 raeque cordata, apice breviter exciso-bidentula angusteque recurva. 

 Perianthia oblongo-pyriformia, profunde quinqueplicata, apice leviter 

 obcordata, rostro subraerso, plicis posticis longe decurrentibus orani- 

 bus angustis intlatis, apice urabonatim prominulis. Folia floralia 

 perianthio aequilonga, acuta, sub apice paucidentata, lobulus folio 

 subcequalis, ad medium solutus, similiter dentatus. Amphigastrium. 

 florale perianthio duplo brevius, obovato-obconicura, liberum, apice 

 breviter excisobilobatum, lobis acutis paucidentatis, in sinu levibus. 

 Andrceciademni. 



Hab. Peruvia. 



26. Hygrolejeunea elongella (Gottsche) St. 



Syn. : Lejeunea elongella G. Ann. sc. nat., 1864 p. 161. 



Dioica magna gracillima, pallide flavicans, in cortice dense depresso- 

 Ccespitosa, Caulis ad 7 cm. longus, sparsim irregulariterque pinnatus, 

 ramo longiore hic illic interjecto, similiter pinnato. Folia caulina 

 parura imbricata, subrecte patula, valde concava, in plano late ^ovata 

 (1,33 mm. longa, raedio 1 rara. lata), asymraetrica, basi antica maxime 

 ampliata lateque rotundata, apice obtusa, ad mediura inserta, raargini- 

 bus celluloso-crenulatis. Cellulse superae 27X27 «jl, basales 27x36 ja, 

 trigonis raajusculis, in raedio parietum nodulosis. Lobulus parvus (saepe 

 obsoletus) folio sextuplo brevior, late conicus, carina oblique adscen- 

 dens, substricta, levi sinu in folium excurrens, apice quam basis duplo 

 angustiore, margine supero substricto, apice eraarginatus, angulo 

 spina valida haraata unicellulari arinato. A m ph i gast ria cauUm inaxiraa, 

 foliis sequiraagna, parura latiora quain longa, profunde sinuatim inserta, 

 optiine cordatira ampliata, apice ad V^ inciso-biloba, sinu angusto, 

 lobis acutis. Flores ferainei uno latere innovati. Folia floralia parva, 

 0,5 min. longa, late obovato-obconica, apice acuta vel apiculata ; lobu- 

 lus tertio brevior, obovato-oblongus, ad ^/a solutus, apice obtusus. 

 Amphigaslrium florale foliis floralibus aequilongum obovato-obconicum, 



535 



